Assessment of bioaccumulation of REEs by plant species in a mining area by INAA

Anawar, Hossain M.; Freitas, Maria do Carmo Duarte; Canha, Nuno; Dionísio, I.; Dũng, Hồ Mạnh; Galinha, Catarina; Pacheco, A. M. G.

doi:10.1007/s10967-012-1669-2

Cited by 27 publications

(13 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…soluble) soil concentrations in substrate soils, with higher bioaccumulation in plants on low pH soils. 24 Previous studies showed that lichens accumulate two-fold higher concentrations of REEs than vascular plants 49 , whereas our results show that natural REE levels can be an order of magnitude higher for lichens and moss. Unlike vascular plants, lichens and moss accumulate elements from atmospheric deposition (rainfall, dust), which may be a pathway for greater REE bioaccumulation than the uptake of REEs by root systems in vascular plants.…”

Section: Ree Bioaccumulation and Biomagnificationcontrasting

confidence: 67%

Rare earth elements (REE) in freshwater, marine, and terrestrial ecosystems in the eastern Canadian Arctic

MacMillan

Chételat

Heath

et al. 2017

Preprint

View full text Add to dashboard Cite

Few ecotoxicological studies exist for rare earth elements (REEs), particularly fieldbased studies on their bioaccumulation and food web dynamics. REE mining has led to significant environment impacts in several countries (China, Brazil, U.S.), yet little is known about the fate and transport of these contaminants of emerging concern. To understand how REEs behave in pristine northern food webs, we measured REE concentrations and carbon and nitrogen stable isotope ratios (∂ 15 N, ∂ 13 C) in biota from marine, freshwater, and terrestrial ecosystems of the eastern Canadian Arctic (N=339). Northern ecosystems are potentially vulnerable to REE enrichment from prospective mining projects at high latitudes. Wildlife harvesting and tissue sampling was partly conducted by local hunters through a communitybased monitoring project. Results show that REE generally follow a coherent bioaccumulation pattern for sample tissues, with some anomalies for redox-sensitive elements (Ce, Eu). Highest REE concentrations were found at low trophic levels, especially in vegetation and aquatic invertebrates. Terrestrial herbivores, ringed seal, and fish had low REE levels in muscle tissue (<0.1 nmolg -1 ), yet accumulation was an order of magnitude higher in all liver tissues. Age-and length-dependent REE accumulation also suggest that REE uptake is faster than elimination for some species. Overall, REE bioaccumulation patterns appear to be species-and tissue-species, with limited potential for biomagnification. This study provides novel ecotoxicological data on the behaviour of REE in ecosystems and will be useful for environmental impact assessment of REE enrichment in northern regions.peer-reviewed)

show abstract

Section: Ree Bioaccumulation and Biomagnificationcontrasting

confidence: 67%

Rare earth elements (REE) in freshwater, marine, and terrestrial ecosystems in the eastern Canadian Arctic

MacMillan

Chételat

Heath

et al. 2017

Preprint

View full text Add to dashboard Cite

show abstract

“…According to this rule, elements with even atomic numbers are more abundant than their neighbours with odd atomic numbers because of their greater relative stability of atomic nuclei (Jaireth et al 2014). In the earth crust, the content of REE in soils in mining areas or mine tailings also obey the Oddo-Harkins rule (Snelleret al 2000, Miao et al 2011, Walters and Lusty 2011, Aide and Aide 2012, Anawar et al 2012, Gonzalez et al 2014, Jaireth et al 2014.…”

Section: What Are Rare Earth Elements?mentioning

confidence: 99%

“…Three species (Carlina corymbosa, Erica australis, and Lavandula luisierra) growing on mine tailings can accumulate high amounts of REE [La 0.45 -0.57, Ce 0.68 -2.41 mg kg -1 (d.m.)] (Anawar et al 2012).…”

Section: Bioaccumulation and Plant Hyperaccumulatorsmentioning

confidence: 99%

Rare earth elements in plants

Kovarikova¹,

Tomášková²,

Soudek³

2019

Biologia plant.

View full text Add to dashboard Cite

Since 1960, the positive effects of rare earth elements (REE) on crop physiology have been observed, and support for photosynthesis, biomass accumulation, secondary metabolites, or enzymes has been reported in 40% of studies. A higher content of chlorophylls a and b as well as carotenoids have been found along with an increased efficiency of photosystem II photochemistry and electron transfer rates. An increased activity of a key photosynthetic enzyme was also found in several plants growing in soil with a higher content of REE. An appropriate amount of REE also activates the antioxidant activity of peroxidase, superoxide dismutase, and catalase. These enzymes, together with a higher content of flavonoids and carotenoids, increase the resistance of plants to oxidative stress caused by different abiotic stresses. The positive effect of REE on biomass accumulation was also confirmed, but their affection on mycorrhizal symbiosis remains ambiguous. On the other hand, an excess of REE leads to damage to plants including the chloroplast ultrastructure. Therefore, the positive and negative effects of REE remain controversial, and the mechanisms of effects of REE in plants remain poorly understood. In addition to physiological processes, the absorption, bioavailability, and translocation of REE in plants as well as their possible ecotoxicology and hyperaccumulation are discussed in this review.

show abstract

“…After thorough homogenization, pellets of 250-300 mg were prepared and pelletized for element characterization by instrumental neutron activation analysis (INAA; Almeida-Silva et al, 2011a;Anawar et al, 2012;Almeida et al, 2013b). Therefore, chemical composition of exposed and unexposed biomonitors was assessed and in total 22 chemical elements were analyzed, namely, As, Br, Ca, Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Na, Rb, Sb, Sc, Sm, Sr, Ta, Th, Yb, and Zn.…”

Section: Chemical Analysismentioning

confidence: 99%

Indoor and Outdoor Biomonitoring Using Lichens at Urban and Rural Primary Schools

Canha¹,

Almeida²,

Freitas³

et al. 2014

Journal of Toxicology and Environmental Health, Part A

View full text Add to dashboard Cite

Monitoring particulate matter (PM) and its chemical constituents in classrooms is a subject of special concern within the scientific community in order to control and minimize child exposure. Regulatory sampling methods have presented several limitations in their application to larger number of classrooms due to operational and financial constraints. Consequently, passive sampling methodologies using filters were developed for indoor sampling. However, such methodologies could not provide parallel information for outdoors, which is important to identify pollution sources and assess outdoor contribution to the indoors. Therefore, biomonitoring with transplanted lichens, a technique usually applied for outdoor studies, was used both indoor and outdoor of classrooms. Three main objectives were proposed, to (i) characterize simultaneously indoor and outdoor of classrooms regarding inorganic air pollutants, (ii) investigate spatial patterns of lichen conductivity, and (iii) assess pollution sources that contribute to a poor indoor air quality in schools. Lichens Flavoparmelia caperata were transplanted to indoor and outdoor of classrooms for 59 d. After exposure, electric conductivity of lichens leachate was measured to evaluate lichen vitality and cell damage. Outdoors lichen conductivity was higher near the main highways, and indoors there was great variability in levels, which indicates different emissions sources and different ventilation patterns. Chemical content of lichens was assessed by instrumental neutron activation analysis (INAA), and As, Br, Ca, Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Na, Rb, Sb, Sc, Sm, Sr, Ta, Th, Yb, and Zn were determined. Element accumulation, crustal enrichment factors, and spatial variability of elements were analyzed and contaminants from anthropogenic sources, such as traffic (As, Sb, and Zn) and indoor chalk (Ca) found. Classrooms with potential indoor air quality problems were identified by presenting higher accumulations of inorganic pollutants in exposed biomonitors.

show abstract

Assessment of bioaccumulation of REEs by plant species in a mining area by INAA

Cited by 27 publications

References 9 publications

Rare earth elements (REE) in freshwater, marine, and terrestrial ecosystems in the eastern Canadian Arctic

Rare earth elements (REE) in freshwater, marine, and terrestrial ecosystems in the eastern Canadian Arctic

Rare earth elements in plants

Indoor and Outdoor Biomonitoring Using Lichens at Urban and Rural Primary Schools

Contact Info

Product

Resources

About